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* [PATCH -next,V2] fscache: support to disable assert macro
@ 2023-11-01 16:34 WoZ1zh1
  2023-11-07 10:16 ` Zizhi Wo
  0 siblings, 1 reply; 6+ messages in thread
From: WoZ1zh1 @ 2023-11-01 16:34 UTC (permalink / raw)
  To: dhowells; +Cc: linux-cachefs, linux-kernel, wozizhi, yangerkun

In fs/fscache/internal.h, ASSERT macro is enabled by default and can not
be disabled, then assert failure will crash the kernel as the BUG() is
included in the ASSERT macro. Therefore, add FSCACHE_ASSERT to control it.

Signed-off-by: WoZ1zh1 <wozizhi@huawei.com>
---
 fs/fscache/Kconfig    | 10 ++++++++++
 fs/fscache/internal.h |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig
index b313a978ae0a..7ff844038bc3 100644
--- a/fs/fscache/Kconfig
+++ b/fs/fscache/Kconfig
@@ -38,3 +38,13 @@ config FSCACHE_DEBUG
 	  enabled by setting bits in /sys/modules/fscache/parameter/debug.
 
 	  See Documentation/filesystems/caching/fscache.rst for more information.
+
+config FSCACHE_ASSERT
+	bool "FSCACHE asserts"
+	default n
+	depends on FSCACHE
+	help
+	  Support the ASSERT mode for failure behavior.
+	  Say N here to disable the ASSERT by default.
+	  Say Y to add assertion checks in some places. But the assertion
+	  failure will result in fatal errors that BUG() the kernel.
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index 1336f517e9b1..951166ed772f 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -225,7 +225,7 @@ do {						\
 /*
  * assertions
  */
-#if 1 /* defined(__KDEBUGALL) */
+#ifdef CONFIG_FSCACHE_ASSERT
 
 #define ASSERT(X)							\
 do {									\
-- 
2.39.2


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2024-01-26  2:51 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-11-01 16:34 [PATCH -next,V2] fscache: support to disable assert macro WoZ1zh1
2023-11-07 10:16 ` Zizhi Wo
2023-11-07 12:39   ` Gao Xiang
2023-11-08  2:25     ` Zizhi Wo
2023-11-30  2:50       ` Zizhi Wo
2024-01-26  2:51         ` Zizhi Wo

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